PT-2026-38930 · Linux+1 · Linux Kernel+1
CVE-2026-43288
·
Published
2026-05-08
·
Updated
2026-07-28
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A panic occurs in the ext4 file system when the
DOUBLE CHECK macro is defined. During the execution of mb group bb bitmap alloc(), the system reads and validates the block bitmap. If validation fails, the ext4 mark group bitmap corrupted() function attempts to update the sbi->s freeclusters counter variable. Because ext4 percpu param init() is called after ext4 mb init(), the per-CPU counter is not yet initialized, leading to a page fault and system crash.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use of Uninitialized Resource
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Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel